Home / 27,750.76-38,326.50-18,840.04

Finding the Fourth Proportional to 27,750.76, 38,326.50 and 18,840.04

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Solution

The fourth proportional to 27,750.76, 38,326.50 and 18,840.04 is: 26,019.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,750.76 : 38,326.50 = 18,840.04 : x
  2. Step 2: Convert to fraction form
    27,750.76/38,326.50 = 18,840.04/x
  3. Step 3: Cross multiply
    27,750.76x = 38,326.50 × 18,840.04
  4. Step 4: Simplify right side
    27,750.76x = 722,072,793.06
  5. Step 5: Solve for x
    x = 722,072,793.06/27,750.76
  6. Step 6: Final answer
    x = 26,019.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.